baber/WOPTO huggingface dataset:
Patent DE-2903298-A1 (DE)
Title: Subscriber handset with acoustic number selection indication - provided by piezoelectric transducer also producing acoustic call signal
Inventor: LEISTNER RUDOLF
IPC: H04M1/56
Filed: 1979-01-29
Abstract: The subscriber handset has a piezoelectric transducer (PZ) for providing an acoustic call signal and which is connected in series with a control element (T1) for charging and discharging it in dependence on an input signal obtained from the call current. During a number selection operation, a second input signal is supplied via a switch (S) directly to the control element (T1), so that the piezoelectric transducer (PZ) provides an audible indication of the number selection. Pref. the control element (T1) comprises a transistor, with a second transistor (T2) connected in parallel across the piezoelectric transducer (PZ), for discharging it when the control element (T1) is blocked.
Patent DE-2904016-A1 (DE)
Title: Photographic indexer for film - has portable contact printer with character selection facility and lamp operation performed by press button
IPC: G03B27/04
Filed: 1979-02-02
Abstract: The portable contact printer is for applying indexing characters to film before or after printing, and has a compact housing with a hand grip (12) and a manually selected rotating plate (13) with the characters around the edge. The plate is rotated so that the selected character is in the illuminator path (14) and with the exposure window (15) placed at the edge of the film. The lamp housing has a compact, conical shape at the edge of the printer with the lamp operated by a press button (25) by the thumb of the hand holding the handle. The equipment provides a rapid indexing control. A control window (31) views repeat symbols indicating which character is in the exposure position.
Patent DE-2908645-A1 (DE)
Title: Rotary type axial piston pump - has non-return valve in each cylinder discharge to improve volumetric efficiency
Inventor: LECHNER EGON DIPL ING
IPC: F04B1/20
Filed: 1979-03-06
Abstract: The pump has a rotating cylinder drum which contains axial cylnders. Each cylinder contains a piston which is made to reciprocate by a swashplate or cam ring. Liquid is admitted to and released from the cylinders by ports in a valve plate which is stationary in the casing. The face of the drum is pressed against the valve plate. The end plate of the cylinder drum contains a spring loaded non return valve on the outlet of each cylinder. This reduces pressure fluctuations as the liquid is forced into the ports of the valve plate and limits the maximum pressure developed.
Patent DE-2909234-A1 (DE)
Title: Calcining plant for hydraulic binders, esp. for mfg. cement - with max. utilisation of air heated in the clinker cooler, so thermal efficiency is increased
IPC: F27B7/20
Filed: 1979-03-09
Abstract: Plant consists of a preheater; calciner; and a rotary drum sintering furnace followed by a clinker cooler. In the calciner is a second firing zone (I) fed via one duct (II) with air preheated by being used in cooler to cool the clinker. The cooler also has at least another exit pipe (II) for preheated air flowing into an earlier zone of the calciner than zone (I) or the preheater. Pipe (II) may form a by-pass on duct (III), or be a separate air exit pipe located on the hottest zone of the cooler; and both pipes pref. contain shutter valves. Object is to improve thermal efficiency, esp. in comparison with the plant described in DT2325468.
Patent DE-2912228-A1 (DE)
Title: Sieve base with easily replaceable sieve parts - having sheet metal carrier as support part, useful for existing sieving machines
IPC: B07B1/46
Filed: 1979-03-28
Abstract: The support body of the sieve is a sheet metal carrier and has recesses defined by webs where the sieve elements can be snap fitted into these recesses, pref. off-set relative to each other without the need for any special intermediate detent fittings. The support, which is not a rigid self-supporting structure, has only a slight thickness compared to the thickness of the sieve elements and is more or less flexible. The base can thus be used both as a transverse or longitudinally braced sieve or as a flat cover. This and the light weight allows the sieve base to be used even in sieve machines originally designed for the conventional one-piece mesh sieves. The flexible sheet metal carrier is additionally stabilised by the inserted sieve elements. The sheet metal carrier can be fixed in position by suitable fastening bores or the like.
Patent DE-2912859-A1 (DE)
Title: IGFET for PROM in electronic telephone exchange - has its storage gate totally isolated on all sides and charged from control gate with different potential to that of substrate
Inventor: MUELLER RUDOLF DIPL PHYS DR
IPC: H01L29/788
Filed: 1979-03-30
Abstract: The IGFET has its storage gate totally isolated on all sides and charged from a control gate to which a potential differing from the substrate's potential is applied. The control gate (G2) lies above the storage gate (G1). The upper continuation of two mutually overlapping continuationsat the side of the channel at the storage gate and control has at least one window (BF, Bf). An opaque screen (Sch) is located at the side of the control gate and/or the upper continuation over the substrate (Su) and/or over the drain (D) and/or over the source (S). There is fast charging using very low voltages between substrate and control gate.
Patent DE-2913620-A1 (DE)
Title: Tube bending or forming process - using a tilted die which increases tube wall thickness
Inventor: KAHLOW KURT J
IPC: B21D7/08
Filed: 1979-04-04
Abstract: A tube bending process employs a die having a truncated cone-shaped passage terminating in a throat, formed with a stepp section and a shallow section directly opposite the steep section, and designed so that the max. die inlet angle (Ix) is not >40 degrees and the die tilt angle (T) is not 20 degrees and >0 degrees and less than the cone angle (C), where Ix = C + T, T is the angle between the die centreline and the entering tube centreline and C is the angle between the surface of the cone and the die centreline. The process comprises pushing the tubing through the die passage to subject it to circumferential swaging forces causing redn. in the tube outer dia., varying from a max. where it encounters the steepest section and to subject it to an offset of die forces producing a couple or force moment, to a min. where it encounters the shallow section to cause bending of the tube about the shallow section, and allowing the tube to bend without restraint beyond the throat. The process issued to produce high quality bends, correct undesirable eccentricity or create desirable eccentricity in tubes of metal or plastics.
Patent DE-2919287-A1 (DE)
Title: Assembly fixing components to non-magnetic hollow profiles - uses external magnet to draw fixing piece along inside profile
Inventor: GUST HANS-JUERGEN
IPC: E05D5/02
Filed: 1979-05-12
Abstract: The fixing assembly fixes bands to doors or windows etc. with light metal frames and has a fixing piece on the rear of the profile. The fixing piece is connected to the component by a screw that passes through at least one hole in the profile's wall. A tool is used to position the fixing piece inside the profile. The tool (20) has a magnet. Reinforcement (13) is made at least partially of magnetisable material. The tool and the fixing piece (13) are both made of non-magnetic material. The tool has two spaced magnets and two corresp. parts on the fixing piece made of magnetisable material. The advantage lies in being able to position the fixing piece without the help of a sliding rod. The tool is merely moved along the outside of the profile thereby dragging the fixing piece along with it due to magnetic attraction.
Patent DE-2924727-A1 (DE)
Title: Trackless vehicle guidance system - has signals induced in on-board coils that are processed to control steering
Inventor: DJAMSHIDPOUR MASSOUD DIPL ING
IPC: G05D1/02
Filed: 1979-06-16
Abstract: A trackless guidance system for vehicles uses a mathematical function generating circuit to eliminate the problems of small regulating voltages on the null position region. The guidance system uses a conductor inset into the ground surface that is fed with an a.c.signal. The generated magnetic field induces voltages in a horizontal coil (x) and a vertical coil (y) located within the vehicle. The received signals are rectified (1,2) and the horizontal signal (HFx) is transmitted to an exponential function generator (3). A divider circuit (4) is used to generate the quotient of the vertical signal and the exponential (Uy/Uxexp) which is used for vehicle steering.
Patent DE-2940363-A1 (DE)
Title: Continuous item conveyor for automatic spray painting booth - has pallets attached to chains and supported on guide strips at trailing edges
Inventor: STUEMPFIG FRITZ
IPC: B65G17/18
Filed: 1979-10-05
Abstract: The continuously-running conveyor transports items for further processing, particularly through an automatic spray-painting booth. A pair of endless chains run round two pairs of sprockets (5), transport pallets (6) being attached to these chains at their leading edges (8). Their trailing edges are supported alternately on two pairs of guide strips (16, 16') fixed in the frame and one above the other. Two pairs of lifting sprockets (12) work with the chain sprockets and in synchronism with them, engaging with lateral lugs (15') on the pallets, so as to transfer the latter between the strips at the reversing positions.
Patent DE-2940816-A1 (DE)
Title: Composite building brick providing thermal insulation - where bricks carrying stress are bonded together by foamed polymer insulation
Inventor: DECKER HEINZ
IPC: E04C1/41
Filed: 1979-10-09
Abstract: The brick is assembled from a front brick, and rear brick, and possibly an intermediate brick; and the bricks are bonded together only by an intermediate layer of polyurethane without using any other bonding material or system. Different materials may be used for bricks. Two pref. machines employed to mfr. the composite bricks use either work cylinders or flexible belts to clamp the individual bricks together to leave gaps into which a reactive polyurethane mixt. is injected. The composite bricks can carry loads while also providing thermal insulation, where layers are continuous and are not interrupted by webs etc.
Patent DE-2944965-A1 (DE)
Title: Settling container for sludge from coal washings - with clear water sepd. into collector under inclined floor
Inventor: THORN EWALD
IPC: B01D21/06
Filed: 1979-11-07
Abstract: The clear water discharged from a settling container receiving the washings from a coal-washing plant or flotation pile is directed for future use into a collector under the container floor. This floor has a peripheral area of small slope followed by a steaper section which terminates in a central slump for sludge. The collector lies inside a peripheral ring of V-shaped supports below the peripheral floor area and surrounds an annular area round the sump where pumps etc. can be kept dry. The clear water collector does not occupy a separate ground area or require a separate tank with connecting conduits, pumps etc.
Patent DE-2952358-A1 (DE)
Title: Recovery of rhenium and tungsten from alloys of these - by electrochemical solubilisation in sodium hydroxide soln. and solvent extraction of rhenium (NL 30.6.80)
Inventor: PETROV NIKOLAJ JORDANOV
IPC: C22B3/28
Filed: 1979-12-24
Abstract: In a process for the recovery of Re and W from scrap rhenium-tungsten alloys, the alloy is first solubilised electrochemically in a 4-5N NaOH soln. Red is then extracted from the resulting soln. with an organic hetero atom-contg. solvent (I). The (I) is distilled and the resulting Na perrhenate is converted into ammonium perrhenate 3N by ion exchange. The refined prod., after dilution with not > an equal vol. of water and neutralisation with H2SO4 to pH = 1, is extracted with a soln. of trioctylamine in kerosene with the addn. of octylalcohol, to extract the tungsten, then the tungsten is re-extracted from the organic phase with ammonia. The process is quicker and simpler to operate than prior art processes, and gives a high degree of sepn. and recovery.
Patent DE-3000606-A1 (DE)
Title: Tractor chassis carrying cab via spring dampers - has two swivel arms, each hinged to lateral cab suspension point and coupled also to chassis
Inventor: KAUSS WOLFGANG DIPL ING
IPC: B62D33/06
Filed: 1980-01-09
Abstract: The tractor or similar vehicle comprises a chassis (2) and a cab (8) carried by the chassis via springs (32,34) and dampers (40,42). Two longitudinal sprung swivel arms (32), fixed to the chassis, support the cab at pivot points (16) to either side, which lie on a transverse axis passing through or near the centre of gravity of the cab, such that the cab can move in vertical direction only. The dampers are so arranged that they are effective during vertical up and down movement of the cab, and during its forward and rearward rocking movement, as well as during its lateral rocking movement about a longitudinal axis through the centre of gravity.
Patent DE-3002655-A1 (DE)
Title: Root crop lifting machine - has intermediate harder pieces set between conical protuberances on circular frame, and is designed to clean easily
Inventor: JUNNILA LAURI JOHANNES
IPC: A23N12/00
Filed: 1980-01-25
Abstract: The root-crop lifting machine is drum-shaped; and is designed to clean itself easily. It has an axle to which a number of brush-type implements are fixed. The brushes are mounted on a frame circular in cross-section and which has a middle opening for the axis. Conical pieces (13) stick out from the frame. Between the brush sections (11) on the axle there is at least one intermediate piece (12) which is made of material which is considerably harder than that of the brush sections (11). The opposite facing surfaces of the intermediate pieces (12) have annular recesses (16) in. The intermediate sections are larger in dia. than the frame.
Patent DE-3010535-A1 (DE)
Title: Regenerator for digital transmission system with high bit rate - has difference amplifier with two stages and timing module supplying pulses
Inventor: THANHAEUSER GERHARD DIPL ING
IPC: H03K5/02
Filed: 1980-03-19
Abstract: A regenerator is for a digital signal transmission system that can handle higher bit rates. The power consumption is very low. It contains a difference amplifier at the input and a gating network that links the digital signal pulses with timing pulses. The first difference amplifier has two amplification stages. One input is connected to a reference voltage source (Uref1). The input of the second amplifier stage (T2) is connected to a timing module (T). The output of the first stage is connected to the supply line. The junction of the two stages is connected to earth via a resistor. The input of the second stage is connected to a second reference voltage (Uref2). The two ouputs feed a logic OR gate.
Patent DE-3013476-A1 (DE)
Title: Cream applicator for wafers - with suction chest under belt conveyor for constant speed and alignment
Inventor: POSTADE KARL HEINZ
IPC: A21C15/00
Filed: 1980-04-08
Abstract: Cream and other top coatings are applied to wafers by a machine, including an endless belt conveyor with a magazine for the wafers at one end and a cream applicator with hopper and roll in the middle. The wafers reach the applicator roll in a steady alignment and at a steady travelling speed, at least for a predetermined distance of twice their length. This reduces the amt. of defective prods. by uneven application of the creamy layer and saves cream because the cream thickness need not make any allowances of uneveness. If suction is used for the alignment, the cream surplus is removed from the belt.
Patent DE-3016324-A1 (DE)
Title: Selection unit for multispeed drive - has manual of automatic selector operating geneva mechanism to change speed
Inventor: STUCKI FREDY
IPC: F16H27/06
Filed: 1980-04-28
Abstract: A manual or automatic changeover system allows a range of speeds to be selected on a machine tool dependent upon predetermined settings. Speed changes are produced by axial moving selector cogs (22, 23) on two separate shafts. The cogs have a number of specific axial positions that are achieved by actuating arms (21) that are indexed by Geneva type mechanisms. The actuating pins (14) are eccentrically mounted on the end of shafts (1) that terminate in a manual input knob (8). The shafts have gear teeth (5) that mesh with a disc (10) that contains setting markings that are visible through a window (12). An automatic system can be provided by replacing the manual setting wheel with an electric drive.
Patent DE-3018626-A1 (DE)
Title: Roller cutter machine shield swivel mechanism - has grabs on ring linked to pressure cylinder and roller carrier arm
Inventor: HENRICH FRIEDHELM
IPC: E21C27/02
Filed: 1980-05-16
Abstract: Adjustment is provided by a double-side-activated pressure cylinder, engaging a swivel ring on the roller axis, holding a shield carrier arm, on an excavating shield swivelling about the roller axis of a roller cutter machine. Two grab devices (11,11') on the periphery of the ring (10), alternately brace it. One is connected to the pressure cylinder (12,12') swivelling the shield (7,7'), and mounted so as to slide on the ring periphery. The other is linked to the component on the machine (1) which bears the cutter roller (3,3'). Both grab devices may be guided on the ring periphery with form-looking effect, and fitted with a hydraulic cylinder with supported piston (27) bracing ring and grab together. A single cylinder is able to swivel the shield about the whole roller periphery, and engages the arm, or component joined to it, directly.
Patent DE-3020380-A1 (DE)
Title: Fluid e.g. ink eradicator dispensing material - consisting of moisture conductive e.g. alpha-cellulose fibres embedded in gelled plastisol
Inventor: BUCHHOLZ GERD
IPC: A01N25/34
Filed: 1980-05-29
Abstract: New material contg. and releasing at least 1 active substance consists of a gelled plastisol to which moisture-conducting fibres and the active substance(s) have been added prior to gelling. The material can be used e.g. for the prodn. of non-inking stamps, as a dispenser for the hardening component of 2- component adhesives, as a carrier for ink-eradicating substances (e.g. sulphite solns.), or as a carrier for other liquid or pasty materials such as cleaning fluids, insecticides, perfumes, cosmetics, fertilisers, disinfectants or medicines. The material gives gradual and uniform release of the active substance(s) and is not subject to rapid drying out when left exposed to the atmosphere.
Patent DE-3028827-A1 (DE)
Title: Spoked wheel for tubeless tyre - has two part wheel rim with spoke ends on pressurised section
Inventor: KISSLING WOLFGANG DIPL ING
IPC: B60B25/22
Filed: 1980-07-30
Abstract: The two parts (11,12) of the wheel rim are linked by mating faces (25,26) with sealing gaskets and securing bolts (29). The bolts are applied from the outside and one of the parts has a flange (15) parallel to the wheel rim flange (50), and offset from the pressurised section of the wheel rim to secure the heads of the spokes (14). The wheel rim proper is securely sealed without having to have the spoke holes sealed. The spoke fitting flange runs parallel to the base of the wheel rim, and has its free end butted to a flange (31) running radially under the wheel rim base, and secured by a second set of bolts. This provides a strong wheel using lightweight castings.
Patent DE-3031002-A1 (DE)
Title: Body weight monitoring board - has scales for pointers settable to indicate normal or ideal weight and successive actual weights measured
Inventor: LACH FRIEDRICH
IPC: G09B29/00
Filed: 1980-08-16
Abstract: The record board is intended for monitoring a person's weight and comparing it with the normal and/or ideal weight calculated from a given formula where body height in cm minus 100 equals normal weight in kg; ideal weight is 0.9 times normal weight. The record board comprises a kg scale with two slidable pointers to indicate actual and desired weight, and a board with a kg scale and a number of slidable pointers e.g. one for each day of the week, which can be set to successive actual weights measured.
Patent DE-3034599-A1 (DE)
Title: Insulating polyethylene outer wrapping for pipes - with sandwiched bromine paper layer and outer aluminium sheathing, providing greater non-flammability
Inventor: MOSER HEINRICH
IPC: B65D65/40
Filed: 1980-09-13
Abstract: Insulating double half shells of foamed polyethylene material for cladding pipes comprise an inner polyethylene layer on a paper layer that has been treated with a bromine salt, on the outside of which there is an outer polyethylene layer. On top of this there is a covering of aluminium foil. Pref. the individual layers have the following wts. and masses; (a) inner polyethylene layer; 10-20 (esp. 13-17)g. per sq.m. (b) paper layer; 100-300 (esp. 180-220)g. per sq.m.(c) outer polyethylene layer: 15-25 (esp.18-22)g. per sq.m.; (d) metal foil: 6-12 (esp.8-10)microns. More specifically, the inner and outer layers of polyethylene may be applied molten to the paper layer either successively, or simultaneously. Inexpensive way of protecting pipes has flame-retarding properties by virtue of the bromine paper layer to which the polyethylene layers firmly adhere without the instability associated with polyurethane coverings. The metal foil attached to the outside is as thin as possible, yet is virtually inseparable from the outer polyethylene layer and protects the cladding while reflecting infra-red radiation, so enhancing its heat-insulating properties. The outer metal wrapping easily lends itself to decoration of an aesthetic and varied kind.
Patent DE-3035703-A1 (DE)
Title: Infusion appliance monitor - responds to irregular pressure rise upstream of catheter
Inventor: FRANETZKI MANFRED DIPL PHYS DR
IPC: A61M5/168
Filed: 1980-09-22
Abstract: An infusion appliance for the injection of metered amts. of a fluid into a human or animal body through a catheter includes upstream of the outflow catheter a pressure signal transmitter. The latter is designed as a switch which either opens an N.C. contact or closes an N.O. contact when a predetermined limit pressure is exceeded. This monitors the infusion system for obstacles in the flow (e.g. crystallised inulin) or for the formation of a thrombus at the point of the catheter, so that counter measures can be taken in time.
Patent DE-3040707-A1 (DE)
Title: Metal scaffolding top floor entrance closing frame - has bottom traverse and top handrail linking upright tubes at passage width
Inventor: LANGER GEB LAYHER
IPC: E04G1/14
Filed: 1980-10-29
Abstract: Finishing for a top storey vertically to the direction of passage is easily provided by a separate setting frame for metal scaffolding. It is made up from two vertical frame tubes (1), arranged at an interval (A) corresponding to passage width. The height (H) of these slightly exceeds the distance of the handrail (4) from the storey walking surface. Their bottom ends are interconnected by a traverse (2), and their top ends by a horizontally aligned tube, or other metal profile, forming the handrail. At half height they may be further interconnected by another horizontal tube. Edge board bolts (3) may be provided on the traverse.